Are you looking for an experienced iOS developer who can build, improve, or scale your Apple application with clean architecture, excellent performance, and production-ready code?
I'm Taufiq Giri, a Senior iOS Developer with 5+ years of experience building high-quality applications for iPhone, iPad, Apple Watch, and Mac. I've successfully delivered 20+ applications across various industries, including AI, digital banking, fintech, healthcare, education, e-commerce, productivity, HRMS, fitness, and social networking.
I specialize in building native Apple applications using Swift, SwiftUI, and UIKit, while also providing complete mobile solutions with React Native, Capacitor, Firebase, Supabase, and Node.js when projects require cross-platform development or backend services.
Whether you need a brand-new MVP, feature enhancements, AI integration, backend development, performance optimization, bug fixing, or App Store deployment, I can help transform your ideas into reliable, scalable, and user-friendly applications.
🚀 Core Expertise
Apple Platform Development:
• Native iOS Development (Swift, SwiftUI, UIKit)
• iPadOS, watchOS & macOS Development
• Apple Human Interface Guidelines (HIG)
• MVVM, VIPER & MVC Architecture
• App Performance Optimization
• Bug Fixing & Code Refactoring
Backend & Cloud:
• Firebase (Authentication, Firestore, Storage, Cloud Messaging)
• Supabase
• Node.js & Express.js
• PostgreSQL
• CloudKit
• REST APIs & GraphQL
• Third-party SDK Integration
Apple Frameworks:
• HealthKit
• WatchKit
• WidgetKit
• Core Data
• SwiftData
• Realm
• MapKit
• Core Location
• AVFoundation
• Authentication (Apple, Google, Firebase, OAuth)
Monetization & Distribution:
• StoreKit
• RevenueCat
• Superwall
• In-App Purchases & Subscriptions
• Push Notifications (APNs & Firebase Cloud Messaging)
• TestFlight
• App Store Connect
• App Store Submission & Review
AI & Modern Development:
• OpenAI API Integration
• Google Gemini API Integration
• AI-powered Mobile Applications
• Claude Code
• OpenAI Codex
• AI-assisted Development Workflow
💡 Services I Offer
✅ Native iOS App Development
✅ SwiftUI & UIKit Development
✅ Apple Watch (watchOS) Applications
✅ macOS Applications
✅ React Native Development
✅ Capacitor Mobile Applications
✅ Backend Development (Firebase, Supabase, Node.js)
✅ API Integration
✅ AI Integration (OpenAI & Gemini)
✅ In-App Purchases & Subscription Systems
✅ Push Notifications
✅ Firebase & Cloud Services
✅ Bug Fixing & Performance Optimization
✅ App Store Deployment & Release Management
✅ Long-term Maintenance & Feature Development
🌍 Industries I've Worked With
• AI Applications
• Digital Banking & Fintech
• Healthcare
• Fitness & Wellness
• E-commerce
• Education
• HR Management Systems
• Productivity Apps
• Social Networking
• Job Portals
⭐ Why Clients Choose Me
✔ Production-ready, clean, and maintainable code
✔ Strong communication and transparent progress updates
✔ Pixel-perfect UI following Apple's Human Interface Guidelines
✔ Reliable delivery with attention to performance and scalability
✔ Experience building applications used by real users
✔ Comfortable working independently or as part of an existing development team
✔ Long-term support after launch
🛠 Technologies
Mobile: Swift • SwiftUI • UIKit • React Native • Capacitor
Backend: Firebase • Supabase • Node.js • Express.js • PostgreSQL • CloudKit
Frameworks: HealthKit • WatchKit • WidgetKit • StoreKit • RevenueCat • Superwall • Core Data • SwiftData • Realm • MapKit • AVFoundation
Development: REST API • GraphQL • Git • GitHub • Xcode • TestFlight • App Store Connect
AI: OpenAI API • Gemini API • Claude Code • OpenAI Codex
If you're looking for a developer who values quality, communication, and long-term collaboration, I'd be happy to discuss your project.
Feel free to send me an invitation or message. I'd love to learn more about your project and help bring your ideas to life.
iPadOS
iOS
Swift
SwiftUI
UIKit
HealthKit
WatchKit
In-App Purchases
Core Data
CloudKit
iOS Development
Apple Watch
Apple Xcode
Apple HealthKit
watchOS
Trinh N.
Hanoi, Vietnam
$30/hr
4.9
47 jobs
🚀 Ranked #1 iOS Developer on Upwork in Vietnam 🇻🇳
Trusted by startups and growing businesses to build, launch, and scale native iOS apps
With 9+ years of experience in Apple development, I've helped startups, SaaS companies, and growing businesses transform ideas into high-quality native iOS applications used by thousands of users.
Whether you're launching a new product, modernizing an existing app, or bringing your Android/Web platform to iOS, I deliver scalable, maintainable solutions with clean architecture and an exceptional user experience.
What I can help your business with
- End-to-end iOS app development
- Native iOS apps using Swift & SwiftUI
- Convert Android/Web apps into iOS apps
- MVP development for startups
- Long-term product maintenance & scaling
- Performance optimization & refactoring
- UI/UX implementation with pixel-perfect accuracy
- App architecture improvement & technical consulting
- Team collaboration and Agile/Scrum workflow
Technical Expertise
- UI Development: UIKit, SwiftUI, Auto Layout, Core Animation
- Reactive Programming: RxSwift, Combine
- Networking & API Integration: RESTful APIs, URLSession, Alamofire
- Backend & Cloud Services: Firebase, Firestore, Authentication, Analytics
- Push Notifications: APNs, Firebase Cloud Messaging (FCM), OneSignal
- Architecture Patterns: MVVM, Clean Architecture, Modular Architecture
- Local Storage & Database: CoreData, UserDefaults, Realm
- Media & Realtime Features: AVFoundation, WebSocket
- AI & AR Features: CoreML, ARKit, Vision Framework
- Authentication & Security: OAuth, JWT, Keychain
- Maps & Location Services: MapKit, CoreLocation, Google Maps SDK
- Testing & Debugging: XCTest, Instruments, Memory Leak Detection
- CI/CD & Version Control: Git, GitHub, Fastlane, Xcode Cloud
- Project Management: Agile, Scrum, Jira, Trello
Why clients work with me
- 9+ years of professional iOS experience
- Successfully launched and maintained production apps
- Strong focus on clean, maintainable, scalable code
- Clear communication and reliable delivery
- Experience collaborating with startups and remote teams
- Detail-oriented with strong debugging and problem-solving skills
- Long-term partnership mindset
I care about building stable products that support real business growth — not just writing code.
If you’re looking for a reliable iOS engineer to build, improve, or scale your mobile product, let’s connect.
iOS
Swift
Objective-C
UIKit
Agile Project Management
SwiftUI
Firebase
Apple Xcode
iOS Development
Storyboard
REST API
AI Agent Development
Auto Layout
Mobile App Development
watchOS
Apple Watch Application
macOS
tvOS
Flutter
React Native
ZAEEMULLAH K.
Surat, India
$25/hr
5.0
44 jobs
I am a professional developer with a bachelor’s degree in Computer Science engineering and extensive experience in crafting robust mobile apps and websites. I have developed more than thirty iOS and Android applications designed for iPhones, iPads, Android phones and tablets and successfully executed numerous updates to existing applications for a variety of small to mid-size companies.
I have experience of developing and maintaining bespoke websites for many of my clients which includes redevelopments, re-platforming or the creation of new apps that meet a specific need of the client's business model.
My experience ranges from building intuitive and robust social media apps to building scalable apps for the human service industry. I have built numerous production-grade web apps that include basic websites as well as complex data processing pipelines that work well cross-browser and are mobile responsive.
Over the past few years I have worked on the following technologies:
✔ Swift and Objective-C for iOS and macOS app development
✔ Kotlin and Java for Android app development
✔ Flutter, MAUI, Xamarin and React Native for hybrid app development
✔ ASP.NET MVC, .NET Core, PHP (WordPress, Laravel, CodeIgniter, etc.) for backend development
✔ Angular 2+, HTML5, jQuery, JavaScript, CSS for website frontend development
✔ Database: MySQL, NoSQL, MSSQL, PostgreSQL
I've worked with a wide range of technologies and will help you choose the one that best suits your needs and provides a highly customised, scalable and integrated solution. I'm flexible with my working hours and am happy to work closely with any existing freelancers you work with.
Thanks for going through my profile. Looking forward to hear from you!
iPadOS
Android App Development
Swift
Objective-C
MySQL Programming
Mac OS App Development
iOS Development
ASP.NET
NoSQL Database
PHP
macOS
C#
Firebase
Xamarin
Microsoft SQL Server
AngularJS
Apple Watch
Siddhant D.
Pune, India
$65/hr
4.9
16 jobs
I build and ship AI-powered iOS apps 3x faster(Bug fixes in 24 to 48 hours, Prototype in 3 to 7 days, MVP in 1 to 2 weeks) than traditional developers. As the founder of a mobile studio that has shipped 8 iOS apps in just 9 months, I understand that code is useless if it doesn't launch. I specialize in taking raw ideas and turning them into fully functional, App Store-approved products in weeks, not months.
What I Bring to Your Project:
• Speed & Efficiency: My 3 years+ experience allows me to prototype rapidly and iterate instantly. i
• Full-Stack AI Integration: Expert in integrating OpenAI, Claude, and Gemini APIs into intuitive SwiftUI interfaces.
• Product Mindset: I don't just code; I handle the full lifecycle from UI/UX design to App Store submission and rejection handling.
My Recent Launches:
• ToneFit AI: A workout tracker with AI-generated routines (Dec 2025).
• NetCal: An AI-powered calorie tracker (May 2025).
• UpRight: A posture coach utilizing AirPods motion data (July 2025).
Whether you need an MVP to test a market or a complex AI integration, I deliver production-ready code that scales.
iOS Development
SwiftUI
App Store Upload
Canva
HealthKit
Swift
iOS
Mobile App Bug Fix
Mobile App Design
Health & Fitness
NFC
Bekzod R.
Tashkent, Uzbekistan
$30/hr
5.0
121 jobs
🚀 iOS Developer | SwiftUI, UIKit & Apple Ecosystem Expert
Elegant iOS Apps Built with Swift & SwiftUI
🔹 7+ years of experience building modern, scalable, and user-focused iOS apps for startups and enterprises.
🔹 I specialize in creating smooth, high-performance apps that integrate seamlessly across the Apple ecosystem - iPhone, iPad, macOS, and Apple Watch.
💡 Expertise
✅ Swift, SwiftUI, Objective-C, UIKit
✅ BLE Integration (smart devices & connectivity)
✅ Apple Features - In-App Purchases, Apple Sign-In, Widgets
✅ Local Data - CoreData & Realm
✅ Cross-Device Development - iPadOS, watchOS, macOS
✅ Clean Architecture - MVVM, MVC
✅ UI/UX Best Practices - Intuitive, pixel-perfect designs
🧠 Tech Stack
Xcode | Swift | SwiftUI | Objective-C | CoreData | Realm | Combine | BLE |
In-App Purchases | Apple Sign-In | WatchKit | Firebase | REST APIs | Git | Jira | TestFlight
🌟 Why Clients Choose Me
✅ Performance-Driven Code - Clean, maintainable & optimized
✅ End-to-End Support - From idea → App Store launch
✅ Apple Ecosystem Expertise - iOS, iPadOS, macOS & watchOS
✅ Responsive Communication - Clear, proactive & reliable
🔧 My Process
1️⃣ Discovery - Understanding your goals & tech needs
2️⃣ UI/UX Planning - Smooth, user-friendly design
3️⃣ Development - Efficient, scalable coding
4️⃣ Testing & QA - Performance & stability checks
5️⃣ Deployment - App Store release & ongoing support
Let’s turn your iOS app idea into reality - built for performance, designed for users, and engineered to grow.
💬 Message me today to discuss your project!
Native App Development
WebRTC
iOS Development
Bluetooth
Swift
Firebase
Objective-C
Core Bluetooth
In-App Purchases
User Authentication
iOS
Apple Xcode
Business with 1-9 Employees
Bluetooth LE
Ferry Dwianta P.
Jakarta, Indonesia
$15/hr
5.0
19 jobs
I’m an iOS Developer / Swift Developer with proven experience building production-ready iPhone, iPad, and macOS applications for fintech, banking, trading, and social media platforms.
I help startups and businesses build scalable, high-performance iOS apps from MVP to full App Store release.
With strong expertise in modern Apple development, I focus on clean architecture, maintainable code, and smooth user experience.
iOS Development Expertise:
• iOS / Swift Developer (3+ years)
• UIKit & SwiftUI
• MVVM, VIPER, Clean Architecture, TCA
• REST API integration & backend collaboration
• Core Data & SwiftData
• Combine & async/await
• App performance optimization
• Bug fixing & refactoring legacy iOS code
• TestFlight & App Store deployment
• Ongoing iOS app maintenance & feature development
Industries I’ve Worked With:
• Financial trading apps
• Banking applications
• Social media apps
• Startup MVP products
Whether you need:
• A new iOS app built from scratch
• An experienced Swift developer to join your team
• Feature development & scaling
• Architecture improvement & refactoring
• App Store submission support
I can take full ownership of the iOS side and deliver clean, production-ready results.
If you're looking for a reliable iOS developer who understands both business goals and technical scalability, let’s connect.
iOS
UIKit
Core Data
Firebase
RxSwift
SwiftUI
Clean Architecture
Unit Testing
Reactive Programming
GUI Testing
UX & UI Design
AI Mobile App Development
Mobile App Development
Android
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